Photographic camera.



PATENTED AUG. l1, `1903.

F. B. CASE.

PHOTOGRAPHIC CAMERA.

APPLICATION FILED DBG.1I, 1902.

H0 HODEL.

,Ba am. ma/@M7 UNITED STATES y Patented August 11, 1903.

FRANK B. CASE, OF ROCHESTER, NEW' YORK.

PHOTOGRAPHIC CAMERA.

SPECIFICATXON forming part of Letters Patent No. '73 6,211, dated August1 1, 1903.

Application filed December l1, 1902. Serial No. 134,787. (No model.)

To @ZZ whom it 111,601/ concern:

Beit known that I, FRANK B. OASE, a citizen v of the United States,residing at Rochester,

in the county of Monroe and State of New York, have in vented anImprovement in Photographic Cameras, of which the following is aspecification.

This invention relates to that class of cameras in which thelens-carriage and the bel-.

lows connecting the same to the camera-back is arranged to be folded upwithin the cameraback, and a door hinged to the bottom edge of such backswings outward and downward, so as to form a bed, carrying a suitableguideplate upon which the lens-carriage is arranged to be adjustablysecured for the purpose of focusing the camera.

The main feature of mypresent invention consists in an improved meansfor securing a swinging adjustment between the bed and back oi a camera,so that the camera-back may be given a plumb position when it isnecessary to point the lens either above or below a horizontal line, andthus eliminate the distortion that would necessarily result if such backcould not be given such a plum position.

The several views illustratingmy invention are as follows:

Figure lis a side View of so much of a camera as is necessary to clearlyindicate the connection thereto and operation of my invention. Figs. 2and 3 are side and end views, respectively, of the particular parts madeuse of to effect the result indicated above. Figs. 4 and 5 show in viewssimilar to Figs. 2 and 3 a modiiied form of my invention.

Referring to Fig. 1, the camera-back ce has hinged thereto at f thecamera-bed e, to which there is adj ustabl y secured in the usual mannerthe lens-carriage c or camera-front, which in turn supports the lens (l.The bellows connected to the camera-back a and the lens-carriage c isshown at Z). The bed e is secured in the desired position relatively tothe camera-back a by means of the metal brace g, which is secured to theinside of the back d in the usual manner by the pin k. Thisbrace g ispivoted at its lower end at h3 in the upper end of the sliding bolt 71,and such bolt 7L is arranged to be held at any desired point in theguide j by means of the nut e' thereon. The construction of the bolt h,nut t', and guide j appears more clearly in Figs. 2 and 3.

As seen in Figs. 2 andv 3, the guidej is practically a rectangular tubehaving a longitudinal slot in the center of its upper face. The bolt 7Lis grooved on its sides, near its lower end, so as to receive and slideupon the upper sides of the guide 7' on either side of the slot therein.The nut c' is located above the guide j, so that when such nut is turneddown on Vthe bolt h such bolt is'pulled up until the top of the tube orguidejl is rigidly clamped between thel end of the bolt Within such tubej and the nut fz'. The guide j has formed on its ends the projections jgjg, through holes in which are passed screws to secure the same to thebed e. The guide j is secured to the bed c in such a position that whenthe axis of the lens d is perpendicular to the plane of the camera-backa the bolt 7L will occupy a position about midway between the ends ofthe guide When it is desired to secure other adjustments, the nut/L' isloosened and the bed e-is moved either up or down, and when the desiredposition is secured the bed e is locked in that position by againtightening the nut 1'. lThe position of the parts for the perpendicularposition of the lens-axis and camera-back a is indicated in Fig. l infull lines, and two other positions are indicated in dotted lines, onefor the lens elevated and the other for the lens depressed, withoutmoving the back a. For the elevated and depressed positions of the lensjust mentioned the parts b c d e g 7L j take the positions indicated atb c d e g 7L t" 'j' and b2 c2 d2 e2 g2 h2 232, respectively.

In Figs. et and 5 a modified form of the parts seen in Figs. 2 and 3 isshown. In this oase the guide j* has formed thereon feet j j forsecuring the same to the camera-bed. A bolt h4 is slotted at one end, soas to receive the guide j therein, and the slotted end is threaded andengaged by the nut which serves to clamp the guide jl between the bolt7L'l and the nut s at any desired position. The metal brace g3 issimilar to the brace g and is pivotally connected to the bolt h4 at h5.The parts as shown in Figs. 4 and 5 cooperate IOO in practically thesame manner to produce practically the same results as the parts shownin Figs. 2 and It will of course be understood that a brace g and all o'its connections, as shown, may be used on the side of the camera awayfrom the observer.

What I claim is l. In combination with a camera-back and a camera-bedcooperating and articulating therewith, a guide secured to one of suchmembers and a slide working thereon, means for clamping such slide inany desired position on such guide, and a connecting-brace articulatingat one end with such slide and having its other end arranged toarticulate upon a pin or stud carried by that one of such iirst-namedelements with which the member carrying such guide articulates, suchbrace provided with a slot at one end whereby it may slide upon thatelement with which the slotted end of such brace articulates, to permitof the opening and closing of such camera elements without disturbingthe adjustment of such slide in such guides.

2. In combination with a camera-back and a camera-bed articulating andcooperating ltherewith, a guide carried by and secured to such bed, aslide Working on such guide, and a brace articulating-at one end withsuch slide and arranged to articulate at its other end upon a pin orstud carried by such cameraA back, such brace provided with a slot atone end whereby it may slide upon that member with which the slotted endof such brace articulates, to permit of the opening and closing of suolicamera elements without disturbing the adjustment of such slide in suchguides.

In combination with a camera-back and a camera-bed articulating andcooperating therewith, a guide secured to such bed, a sliding boltarranged to work upon such guide and to be secured in any desiredposition thereon, and a connecting-brace articulating at one end withsuch bolt and arranged to articulate at its other end upon. a pin orstud carried by such camera-back, such brace provided with a slot at oneend whereby it may slide upon that member with which the slotted end ofsuch brace articulates, to permit of the opening and closing of suchcamera elements without disturbing the adjustment of such slide in suchguides.

4. In a photographic camera in combination with a camera-back and a bedcooperating and articulating therewith, a brace for holding suchelements in their opened position, an adjustable slide articulating withone end of such brace, suitable guides for holding such slide, and meansfor securing such slide in any desired position on such guides, suchguides secured to one of such camera elements and connections betweenthe other end of such brace and such other camera element, wherebysuchcamera elements may be opened or closed without disturbing theadjustment of such slide upon such guides.

FRANK B. CASE. lifitiiesses:

ALBERT C. BELL, A. PEARL MOORE.

